ADO.NET :: Inserting Part Of Record To Database

Aug 4, 2010

I am using ASP.NET 2.0, C#, SQL Server 2005. I have a gridview which has 10 records. I want to only insert few records(for example: 3 records) to the database. How to insert only part of the whole data to the database.

i got the following error when i tried to inser a recrord from my MVC web application , although the insert will work fine when i tried to inser the record manually from the databse explorer, and i checked all the FK relationship they sound valid:-

i am inserting a record into oracle database using vb.net,there is a password field by using md5 i am generating it and taking tht value as string(ex: "16D78A6B10D631C8C86397C35A3CCD57") now my requirement is i should insert it into database(oracle) & in database that field is "RAW" how to do this?and the error msg isType of value has a mismatch with column typeCouldn't store in Col_Pass Column. Expected type is Byte[].

I am wanting to insert a record into a table in SQL then retrieve its key at the same time, the key is a int that is automatically generated, I read something about the '@@Identity' function, is this what I need? How could I then bind this to a label in the ASP.net page?

I have four columns in database. Consider it as a,b,c and d. I'm trying to place a and b column values in TO part and c and d column values in CC part in outlook. a,b,c,d contains six digits numeric values. I just need to place a and b columns values in to and c and d values in cc part on click of a button.

Students can subscribe for any project via a webform. Table 'project ' contains all the proposed project and table 'student' contain the name of the student and the project-id.Now, suppose there is a limit of 4 students for project 'A' and there are already 3 subscribed students for that project. One more student can choose that project. The code-behind checks whether the limit is not reached (by counting the amount students for that project in table 'student') before inserting that student in the table 'student'.

My problem is that when two students fills the webform for the same project and click on the 'save-button' exactly at the same time, the code has no time to check the limit and both students are inserted into table 'student'. Is there a way to lock the table or something in order to preventing this?

I'm a new user of ASP.NET MVC and I'm trying to replicate the ListView control from WebForms in an AJAX-y manner. Take the following as an example:

[Code]....

The "ItemTemplate", "EditItemTemplate", and "InsertItemTemplate" replacements are implemented as Partial Views, so the view for this page looks something like this:

[Code]....

The edit/update flow is very simple. The user clicks the "edit" button, an AJAX request is made to get the "EditItemTemplate", and the contents of that row are replaced with the "EditItemTemplate". When the user clicks "Update" in the edit row, the form is submitted via AJAX and the resulting content replaces the "EditItemTemplate".

The part I'm not sure how to deal with is the InsertItemTemplate. When the user submits the insert form, I need two partial views to be returned: one to replace the InsertItemTemplate (clear the form or show any validation errors), and one to insert into the table as a new record (ItemTemplate). I'm not sure what to do about this...the only options I've come up with are:

Make 2 Ajax requests -- one to insert the item and get the ItemTemplate for the new item and another to get a clean InsertItemTemplate Make 1 Ajax request for JSON -- render the ItemTemplate and InsertItemTemplates into strings and then put them into a JSON object that can be analyzed client-side (ex: { itemtemplate: "<tr>...</tr>", insertitemtemplate: "<tr>...</tr>" }) Make 1 Ajax request for the ItemTemplate and then manually clear the InsertItemTemplate form client-side (removing any form entries and validation elements)

None of these options really seem that great to me...especially #1 (because of a second AJAX request) and #3 (because it keeps my solution from being easily reused on other "ListView replacements" due to the need to manually clear the form). #2 is somewhat acceptable but still kind of hacky because rendering partial views to strings and then sending them in JSON isn't easy to do and ends up being a bit of a hack.

Im trying to get the ID out of the record that i'm inserting using scope_identity. I've add the following line of code to the Insert statements in the sqldatasource - SET @insID = Scope_Identity() I've add the following line to the Insert parameter list

asp:ParameterName="insID"Type="Int32"Direction="Output"

I now want to insert a number records into the database using the following:

I have the logged-in user's Guid stored in a session variable. My understanding is that when the Guid is passed to the session variable it becomes a string. When I use the detailsview control I have to convert the session variable back to a guid and I've been doing it like this and it seems to work fine:

I get an "InvalidCastException" error with the comment "Conversion from type 'Guid' to type 'String' is not valid." I'm assuming the session variable needs to be converted to a type Guid since that's what I've had to do with the Detailsview control. I've tried a few different ways of converting the session variable back to a Guid so the insert command will work, but no matter which method of conversion I try I get errors such as "value of type system.guid cannot be converted to 'string'. I'm confused because I thought I was supposed to convert it from a string to a Guid. The "UserId" parameter is a non-primary key uniqueidentifier in the database.

Unable to cast object of type 'System.Data.Linq.DataQuery`1[Username]' to type 'Username'.

I've been searching but can't find a solution. This particular table has 4 columns. The first column is the int indentifier. Column 2 is "username" (varchar50) and is the primary key. Column3 is "userID" (uniqueidentifier) and column 4 is "active" (varchar5)

Is there any way to make sure an Insert Command happens before the Page_Load Events? I'm having a problem with inserting, then reading the DataSet directly after. It seems it processes too quickly, or prior to the record being inserted. It has an impact on the DataSet that is to be displayed on screen. Summary:

Buttons 1 & 2 Insert their respective options > Page Posts Back > Page_Loads > Read Saved Data > If my Max amount of the 1 of 2 types of Data are reached, the remaining type is shown > Displayed on page The problem I am having is that my DisplayDataSet is not getting the correct values. It seems it's always 1 record behind on the count, because the count happens so fast, it's not getting the record that was just inserted. How can I write this, or make sure the "Find Saved Data' Routine happens after the Insert has been preformed?

is there any way I can retrieve the identity value (auto generated primary key value), of a column after inserting a new database record using linq to sql? i could i achieve this like this using stored procedure: //***insert some recor*** return @@identity. how do I achieve thesame with linq to sql

I have a form that has several textboxes, I am trying to create a label that shows first and last name that was entered in those textboxes after hitting insert button. The label would say "You have successfully added 'First Name' 'Last Name'"

I have a GridView1 With Paging allowed, PageSize = 10. And a Nested GridView2. The INSERT function on nested GridView2 works well until the number of record is 10.

On inserting the 11th record, the GridView1 is recorded normally in page 2 of 2. The Nested GridView2 does not fired properly. it appears empty on the 11th record (page 2 of 2), but instead add its record on the last recorded ID on page 1 of 2.

When I remove the paging, everything works well.

How to resolve the paging issue with Nested GridView on "INSERT" record?

I have a formview and inside it there are two textboxes taking integer as input.I put a condition that if both textboxes are empty then user should be notified that "Please put value in any one of the textbox".It is working very fine.From database side DBA checked that if user input any integer value in any one of the two textboxes and if it is already found in database then there is no insertion.The problem is that everything is working fine and i checked in the database that the record is also not inerting due to duplicate check but user is getting message that "Record inserted successfully."How to stop this message and how to notify user that you have entered duplicate value and transaction should also not been done. Means all inputs should be there rather than clearing textboxes that could be done when "Record Inserted."[Code]....

I am in a serious trouble right now, i wanted to know that how to write a query in LINQ to SQL to retrieve identity column's current value before inserting any value.

I need this cos i m building a windows app n i need to display this value before inserting a record. I have tried DataContext.ExecuteCommand('DBCC CHECKIDENT (Tablename)') but it returns the number of rows modified.